Mohamed Jameels Abdul Latif Jameel Group started its business in 1945 and became the worlds largest Toyota dealership with operations in the Middle East, UK, Central Asia and China. ALJ is also active in the fields of real estate, financing, software solutions, advertising and media, and distribution and sales of electronics and household appliances with interests in Saudi Arabia, the Middle East, Africa, the UK, France, Germany, Japan and China.

It employs more than 10,000 people worldwide with around 2000 in the UK alone. It also operates Saudi Arabias largest consumer finance company. The Group won a libel case in a London court. Jameel sued the Wall Street Journal-Europe for a 2002 article it published in which claimed he was involved in illegal activities. The newspaper awarded damages in excess of US$50,000.

An indication of his huge wealth is the fact that in 2004 he donated more than US$8m to Londons Victoria & Albert Museum to refurbish its Islamic art collection, the new Jameel Gallery, dedicated to the memory of his parents. It houses more than 10,000 Islamic artifacts.